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xfrm_policy: remove xfrm_policy_lookup

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This removes the wrapper and renames the __xfrm_policy_lookup variant
to get rid of another place that used flow cache objects.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Westphal 2017-07-17 13:57:24 +02:00 committed by David S. Miller
parent aff669bc28
commit 86dc8ee0b2
1 changed files with 4 additions and 32 deletions
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36
net/xfrm/xfrm_policy.c
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@ -1175,7 +1175,7 @@ fail:
}
static struct xfrm_policy *
__xfrm_policy_lookup(struct net *net, const struct flowi *fl, u16 family, u8 dir)
xfrm_policy_lookup(struct net *net, const struct flowi *fl, u16 family, u8 dir)
{
#ifdef CONFIG_XFRM_SUB_POLICY
struct xfrm_policy *pol;
@ -1187,26 +1187,6 @@ __xfrm_policy_lookup(struct net *net, const struct flowi *fl, u16 family, u8 dir
return xfrm_policy_lookup_bytype(net, XFRM_POLICY_TYPE_MAIN, fl, family, dir);
}
static struct flow_cache_object *
xfrm_policy_lookup(struct net *net, const struct flowi *fl, u16 family,
u8 dir, struct flow_cache_object *old_obj, void *ctx)
{
struct xfrm_policy *pol;
if (old_obj)
xfrm_pol_put(container_of(old_obj, struct xfrm_policy, flo));
pol = __xfrm_policy_lookup(net, fl, family, dir);
if (IS_ERR_OR_NULL(pol))
return ERR_CAST(pol);
/* Resolver returns two references:
* one for cache and one for caller of flow_cache_lookup() */
xfrm_pol_hold(pol);
return &pol->flo;
}
static struct xfrm_policy *xfrm_sk_policy_lookup(const struct sock *sk, int dir,
const struct flowi *fl, u16 family)
{
@ -2028,7 +2008,7 @@ xfrm_bundle_lookup(struct net *net, const struct flowi *fl, u16 family, u8 dir,
/* Resolve policies to use if we couldn't get them from
* previous cache entry */
num_pols = 1;
pols[0] = __xfrm_policy_lookup(net, fl, family, dir);
pols[0] = xfrm_policy_lookup(net, fl, family, dir);
err = xfrm_expand_policies(fl, family, pols,
&num_pols, &num_xfrms);
if (err < 0)
@ -2398,16 +2378,8 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
}
}
if (!pol) {
struct flow_cache_object *flo;
flo = xfrm_policy_lookup(net, &fl, family, dir, NULL, NULL);
if (IS_ERR_OR_NULL(flo))
pol = ERR_CAST(flo);
else
pol = container_of(flo, struct xfrm_policy, flo);
}
if (!pol)
pol = xfrm_policy_lookup(net, &fl, family, dir);
if (IS_ERR(pol)) {
XFRM_INC_STATS(net, LINUX_MIB_XFRMINPOLERROR);